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7.8 Changing the wet-grinding belt

For all work on the grinding machine, the locally applicable safety and
accident prevention regulations as well as instructions in the “Safety”
and “Important Notes” section of the operating instructions must be
observed.

Never switch on the machine without the belt protection hood attached.
Risk of injury!

CAUTION

Loosen and remove the star handles (7-11/1) by
turning them in counter-clockwise direction; re-
move the belt protection hood (7-11/2).

Turn the belt relief lever (7-12/1) in the direction
of the arrow up to limit stop.

Remove the used grinding belt and place a new
belt over the contact disc and guide pulley. Turn
the belt relief lever (7-12/1) against the direction
of the arrow up to limit stop. Turn the grinding
belt by hand and check to see if it is not grinding
anywhere.

Reattach the belt protection hood.

ATTENTION

Note the running direction arrows on the
inside of the grinding belt.

7. Operation

Figure 7-11

Removing the belt protection hood

Figure 7-12

Changing the grinding belt

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Содержание USK 160 S

Страница 1: ...Incl USK 160 S floor mounted version Status 11 2019 Version 2 1 Translation Operating Instructions Universal Wet Grinding Machine USK 160 S ...

Страница 2: ...2 ...

Страница 3: ...perator Operating instructions Date of issue of the operating instructions November 14 2019 Copyright The copyright for these operating instructions and documents is held by KNECHT Maschinenbau GmbH These documents will be delivered only to our customers and to operators of our products and are a part of the machine These documents may neither be reproduced nor made accessible to third parties inc...

Страница 4: ... 2 4 Safety regulations 12 2 4 1 Organizational measures 12 2 4 2 Protective equipment 12 2 4 3 Informal safety measures 12 2 4 4 Selection and qualification of personnel 12 2 4 5 Machine control system 13 2 4 6 Safety measures in normal operation 13 2 4 7 Hazards due to electrical power sources 13 2 4 8 Particular hazard zones 13 2 4 9 Servicing maintenance repair and fault elimination 13 2 4 10 ...

Страница 5: ...rinding machine 27 7 3 Grinding sickle shaped cutter knives on the wet grinding belt 27 7 4 Grinding hand knives on the wet grinding belt 28 7 5 Polishing and deburring with the polishing disc 29 7 6 Deburring the wet honing wheel 30 7 7 Grinding cutlery knives on the serration grinding wheel 31 7 8 Changing the wet grinding belt 33 7 9 Belt regulation 34 7 10 Coolant unit 35 7 10 1 Belt cooling 3...

Страница 6: ...embly 39 10 2 Disposal 39 11 Service spare parts and accessories 40 11 1 Postal address 40 11 2 Service 40 11 3 Spare parts 40 11 4 Accessories 41 11 4 1 Abrasives used etc 41 12 Appendix 43 12 1 EC Declaration of Conformity 43 Table of contents ...

Страница 7: ...rt installation commissioning Operation including troubleshooting in the process flow as well as Upkeep maintenance repair In addition to the operating instructions and the binding accident prevention regulations applica ble in the country and place in which the machine is used generally acknowledged technological rules with regard to safe and professional work practices are to be observed 1 2 War...

Страница 8: ...efore carrying out servicing maintenance and repair work on it CAUTION RISK OF INJURY FROM ABRASIVE PARTICLES mandatory sign on the front plate Grinding polishing and dressing gives rise to abrasive particles which can enter the eyes Wearing safety glasses is mandatory when carrying out such jobs 1 3 2 General mandatory signs The following general mandatory signs must be observed CAUTION RISK OF I...

Страница 9: ...Figure and item numbers in the operating instructions If the text refers to a machine component shown in a figure a figure or item number is added in brackets after the machine component Example 7 9 1 denotes figure number 7 9 item 1 Hold the cutlery knife 7 9 1 to the serration grinding wheel 7 9 2 at a steep angle approx 45 Then slowly rotate towards the knife tip 1 Important notes Figure 1 1 Ra...

Страница 10: ... the operating instructions in particular the section entitled Safety and the warning notes and have provided signed confirmation of this Checks are also carried out at regular intervals to ensure that the personnel are fulfilling their obligation to observe safety at work 2 1 3 Obligation on the part of the personnel All personnel working on the grinding machine undertake to observe basic occupat...

Страница 11: ... resulting from improper use The user alone bears the risk in such cases Use as intended includes the observance of all the instructions in the operating instructions The grinding machine is being used improperly if for example flat knives are ground without using the grinding plate attachments are not properly mounted knives are sharpened polished in opposite direction of the cutting edge on the ...

Страница 12: ...the grinding machine care must be taken to ensure that all protective equipment is properly mounted and functional Protective equipment may be removed only after the machine has stopped and has been secured against accidental restarting of the grinding machine When spare parts are supplied the protective equipment must be attached by the operator as stipulated 2 4 3 Informal safety measures The op...

Страница 13: ...estart ing Before switching on the grinding machine ensure that no one is exposed to any risk from the start up of the machine If there are any functional faults stop the machine immediately and secure against restarting Have the faults eliminated immediately 2 4 7 Hazards due to electrical power sources Work on electrical units or operating materials may only be performed by a qualified electrici...

Страница 14: ...and materials used must be handled properly and disposed of in an environ ment friendly manner Ensure that wear and replacement parts are disposed of in a safe and environmentally friendly way 2 4 12 Oils and greases When handling lubricants oils and greases follow the safety regulations for the product Observe special instructions for the foodstuffs sector 2 4 13 Relocation of the grinding machin...

Страница 15: ...Output 0 7 kW Power consumption 0 8 kW Energy consumption 2 A Back up fuse 16 A Idle noise level of the wet grinding belt 80 dB A Diameter polishing disc 150 mm Operating noise level of the polishing disc 84 dB A Diameter serration grinding wheel 150 mm Operating noise level of the serration grinding wheel 86 dB A Speed 1750 1 min This information may change depending on the electrical power suppl...

Страница 16: ...16 3 Description 3 2 2 USK 160 S tabletop version Height 450 mm Width 610 mm Depth 550 mm Weight 29 kg 450 mm 550 mm 610 mm Figure 3 1 Dimensions in mm tabletop version CoG CoG ...

Страница 17: ...17 3 2 3 USK 160 S floor mounted version Height 1200 mm Width 630 mm Depth 610 mm Weight approx 66 kg 610 mm 630 mm 1200 mm Figure 3 2 Dimensions in mm floor mounted version 3 Description CoG CoG ...

Страница 18: ...l The USK 160 S can be alternately equipped with a serration grinding wheel for cutlery knives and a polishing disc In just a few simple steps you can mount a device HV 161 that sharpens cutter knives up to 200 ltr at the correct angle accessory The USK 160 S is available in a tabletop and floor mounted version 3 Description ...

Страница 19: ...t honing wheel 4 Water tray 5 Machine feet 6 Protection hood right 7 Wet grinding belt Figure 3 3 General view of grinding machine USK 160 S floor mounted version HV 161 8 HV 161 belt grinding attachment optional 9 Base with compartment for accessories floor mounted version only 6 7 8 9 1 2 3 4 5 ...

Страница 20: ... 3 4 Side view left of grinding machine USK 160 S tabletop version 1 Spray guard 2 Slide guard 3 Water nozzles left 4 Protection hood star handles 3 4 1 Control panel 1 I 0 main switch 1 2 4 3 4 1 3 Figure 3 5 Control panel 1 ...

Страница 21: ... 4 2 HV 161 belt grinding attachment optional all versions 1 Grinding lever 2 Grinding plate 3 Hand wheel for feeding the belt grinding attachment 4 Spacer disc bracket Figure 3 6 HV 161 belt grinding attachment 1 2 3 4 ...

Страница 22: ...rt damage If damage is detected on unloading after acceptance of the delivery inform KNECHT Maschinen bau GmbH and the freight forwarder immediately If required consult an independent expert immediately Remove the packaging and shipping straps Remove the shipping straps on the grinding machine Dispose of the packaging in an environment friendly way 4 3 Transport to another installation site For tr...

Страница 23: ...ation mainte nance and repair work on the grinding machine see Chapter 3 2 5 3 Supply connections The grinding machine is delivered ready for connection with the appropriate connection cable Make sure the machine is correctly connected to the power supply CAUTION 5 4 Settings The various components and the electrical system are adjusted by KNECHT Maschinenbau GmbH prior to delivery ATTENTION Unaut...

Страница 24: ...ing the adjustable machine feet by unscrewing them counterclockwise The machine is aligned using a level floor mounted version only Have a qualified electrician on site install the current supply Completely install and check the safety devices before commissioning Be sure to have all the safety devices checked by trained personnel before commissioning CAUTION 5 Installation ...

Страница 25: ... 3x 400V 16A Set the main switch 6 2 1 to I The wet grind ing belt polishing disc wet honing wheel and finned grinding wheel serration grinding wheel rotate Check the direction of rotation The direction arrow 6 2 2 indicates the rotation direction the wet grinding belt and polishing disc wet honing wheel and finned grinding wheel serration grind ing wheel If the rotation directions are incorrect h...

Страница 26: ...service life In practice however the cutting edge breaks off and is therefore no longer sharp when the cutting edge angle is too small The cutting edge angles must therefore lie between 15 and 35 If the cutting edge angles are less than 15 the blade becomes so unstable that it breaks at the slightest resistance If the cutting edge angle is greater than 35 the blade is extremely stable but service ...

Страница 27: ...ng sickle shaped cutter knives on the wet grinding belt To grind sickle shaped cutter knives install the optional HV 161 7 1 1 belt grinding attachment on the machine the grinding plate 7 1 2 with knife is mounted to this device NOTICE More information on this can be found in the technical documentation of the HV 161 belt grinding attachment 7 Operation Figure 7 1 HV 161 belt grinding attachment 1...

Страница 28: ... belt not perpendicular Press the knife onto the grinding belt with your free hand The stronger the pressure the more convex the grind will be Pull both sides of the hand knife over the grind ing belt alternately until a burr is created over the entire cutting edge length Then deburr and polish the hand knife on the polishing disc as described in Chapter 7 5 and on the wet honing wheel as describe...

Страница 29: ... knife is removed with the polish ing disc this gives the knife its final sharpness Set the main switch I 0 3 5 1 to I Hold the polishing paste 7 3 1 briefly against the polishing disc 7 3 2 For polishing deburring move the knife 7 4 1 at a steep angle approx 20 25 along the polish ing disc 7 4 2 Alternately polish the upper and lower side of the knife until the burr is removed Switch off the grin...

Страница 30: ...cooled wet honing wheel The exact circumferential speed and optimal hard ness of the wet honing wheel result in a smooth blade that remains sharp for a long time Set the main switch I 0 3 5 1 to I When deburring move the knife 7 5 1 at a flat angle approx 15 and apply strong pressure along the wet honing wheel 7 5 2 As soon as the burr is removed continue grinding at a slightly steeper angle appro...

Страница 31: ...d to for dry polishing To do so loosen the star handles 7 6 1 on the left side of the machine and remove the protec tion hood Then dismount the finned grinding wheel and the wet honing wheel Use a spanner wrench SW 22 7 7 1 to loosen the nuts 7 7 2 of the grinding spindle Loosen turn left in the direction of rotation Tighten turn right against the direction of rotation The serration grinding wheel...

Страница 32: ...ish the cutlery knife 7 10 1 on the polishing disc 7 10 2 as described in Chapter 7 5 or on the wet honing wheel as de scribed in Chapter 7 6 ATTENTION The water nozzle must be closed for dry polishing see Chapter 7 10 2 Switch off the grinding machine after the grind ing process is finished To do so switch the I 0 main switch 3 5 1 to the 0 position 7 Operation Figure 7 8 Pregrinding cutlery kniv...

Страница 33: ...r clockwise direction re move the belt protection hood 7 11 2 Turn the belt relief lever 7 12 1 in the direction of the arrow up to limit stop Remove the used grinding belt and place a new belt over the contact disc and guide pulley Turn the belt relief lever 7 12 1 against the direction of the arrow up to limit stop Turn the grinding belt by hand and check to see if it is not grinding anywhere Re...

Страница 34: ...e contact disc it can be aligned with the belt adjuster 7 13 1 Turning the belt adjuster 7 13 1 counter clock wise makes the grinding belt run to the left Turning the belt adjuster 7 13 1 clockwise makes the grinding belt run to the right 7 Operation Figure 7 13 Belt adjustment 1 ...

Страница 35: ... water nozzle In doing so the flow rate of the coolant does not change rather the impact angle on the grinding belt The pin 7 15 1 on the water nozzle 7 15 2 indi cates the angle at which the coolant will hit The standard setting is perpendicularly down wards Turning clockwise more coolant Turning counterclockwise less coolant For cleaning the water nozzle is simply pulled out after removing the p...

Страница 36: ...zzle for dry grinding When using a polishing disc to polish the feed of water must be stopped To do so push the rubber cap 7 16 2 over the hole 7 16 3 on the water nozzle 7 16 1 7 Operation Figure 7 16 Closing the water nozzle 2 3 1 ...

Страница 37: ...aning the machine lightly grease the hand knife grinding machine with non corrosive oil also refer to lubrication schedule The coolant must be replaced on a weekly basis 8 2 Lubrication schedule and lubricant table Lubrication work Turnus OEST SHELL EXXON Mobil DEA Lubricating the threads of star handles and clamping levers 4 weeks Multi purpose grease L 2 Gadus S2 V100 2 Mobilith SHC 100 Dolon E2...

Страница 38: ...rinding belt Contact disc is damaged or worn out Change the contact disc Guide pulley is worn out Change the guide pulley No coolant flow Too little coolant in the water tray Refill Lines are blocked Clean Pump defective Replace pump Machine cannot be switched on Power plug defective or not correctly inserted Inspect power plug If a fault is not included in the faults table or if the fault is not ...

Страница 39: ...e carried out by a qualified specialist company 10 2 Disposal At the end of service life the machine must be disposed of by a qualified specialist company In exceptional cases and by agreement with KNECHT Maschinenbau GmbH the machine can be returned Operating materials e g grinding disks wet grinding belts polishing discs etc must also be disposed of correctly ...

Страница 40: ...f you need spare parts please use the spare parts list provided with the machine Please place your order as shown below Please always include the following information Example Machine type USK160S Machine number 12530953160S Assembly designation base plate USK160S Designation of individual part pump USK160S Item no 9 Drawing no 013E 01 0000 Quantity 1 pcs Please feel free to contact us if you have...

Страница 41: ...150x50xd 15 280 412H 03 0624 installed on delivery Serration grinding wheel pitch 1 0 d 150x65xd 15 412G 01 0256 water resistant Pitch 1 25 d 150x65xd 15 412G 01 0498 water resistant Pitch 1 5 d 150x65xd 15 412G 02 0543 water resistant Pitch 2 0 d 150x65xd 15 412G 03 0542 water resistant Pitch 2 5 d 150x65xd 15 412G 03 0769 water resistant Pitch 3 0 d 150x65xd 15 412G 04 0541 water resistant Pitch...

Страница 42: ...at other abrasives are used If you require grinding disks wet grinding belts polishing discs polishing pastes or other accesso ries please contact our sales staff partners or KNECHT Maschinenbau GmbH directly Thank you for buying our product 11 Service spare parts and accessories ...

Страница 43: ... way without our consent Designation of the machine Universal Wet Grinding Machine Type designation USK 160 S Applicable harmonized standards DIN EN 12100 1 in particular DIN EN 12100 2 DIN EN 60204 1 ISO 13857 DIN EN 349 Responsible for documentation Peter Heine Dipl Ing Mechanical Engineering BA Phone 49 7527 928 15 Manufacturer KNECHT Maschinenbau GmbH Witschwender Straße 26 88368 Bergatreute G...

Страница 44: ...KNECHT Maschinenbau GmbH Witschwender Straße 26 88368 Bergatreute Germany T 49 7527 928 0 F 49 7527 928 32 mail knecht eu www knecht eu ...

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